What’s in My Trash?
More waste is being produced per person than ever, although it is leveling off.
According to the U.S. Environmental Protection Agency, in 1960 about 2.7 pounds
of trash were discarded per person per day. That figure has now grown to 4.6
pounds. Much of the increase is a result of socioeconomic factors. The amount
of waste discarded per person can be influenced by the size of the household,
income, degree of urbanization, geographic location, season, number of working
adults, and other lifestyle factors.
Of note is the change in the American household
or family structure over the past 30 years, and the impact it has had on our
trash problem. The increasing
breakup of the nuclear or traditional family has led not only to more households,
but also to a duplication of services, goods, and appliances to sustain them.
During this same period, American families increasingly have shifted from
one-income to two-income households. This trend has helped to create an increasing
reliance
on single use and disposable convenience items. For good or bad, convenience
is a fact of our current lifestyle.
Procedure
- As a class, brainstorm a list of possible items that a student could
throw into the trash on a typical day, not only at home, but also at school.
In generating
this list, students should be reminded to think of different categories of
trash: paper, plastic, yard trimmings, metals, rubber/leather, textiles,
wood, food,
aluminum, glass, and “other.” A class recorder should compile
the list in a word document or on paper.
- Duplicate this class list. This will
be the Trash Inventory Checklist. Require each student to monitor his or
her discard for one day. Students should use
the list to check off the items they throw away, noting the number of each.
Students
should also note any discarded items that are not on the list.
- The day after
students complete their inventories, ask them to analyze the results and
think about how the data reflects their personal habits and lifestyles.
Have each student write an essay that answers this question: “It is
100 years from now and your home is the site of an archeological dig. What
would
the archeologist conclude if all your daily discards were found in a pile?” A
possible prompt for student is, “If archaeologists found my trash,
they would conclude…about me… because…”
Questions
Analyze factors that could cause variations between student inventories. Use
these questions as prompts for discussion or writing.
a. Would your trash inventory
be the same every day of the year? Explain.
b. How would holidays or birthdays
affect your trash?
c. Would an archaeologist know what season of the year your
trash was from? How?
d. Would most of your neighbors’ garbage be similar?
e. Explain how each of
the following factors could affect the amount and kinds
of household trash:
- A baby or very young children
- A house with a small yard on a city lot
- A house with a large lawn in the suburbs
- A rural farm with animals and fields
- A house/apartment with very little storage space
- A family of one parent and one child
- A family of two parents and four children
- A garden to supply vegetables and fruits
- A region that is warm all year
- Not having a microwave oven
- Having a very large income
- A family with two working parents
f. How does reliance on convenience products seem to affect waste?
Suggestions
- Ask students to write and share responses to the question: If you were
asked to reduce the amount of waste you produced, what would you do and
how would
it make a difference?
- Have students look at their inventory sheets and answer
these questions: How many bags of trash do you think you produce in a
day? In a year? How big
an area
would those bags fill? How many bags would everyone in your class produce
in a year?
Project Summary
| Content Areas |
Objectives
Students will… |
Time |
| • |
Social Studies
Population, family structure, geography
|
| • |
Science
Solid waste, data analysis, drawing inferences, supporting conclusions
|
| • |
Writing |
|
| • |
Become aware of the amount and kinds of trash they personally generate in a day
|
| • |
Infer how both the types and amounts of household trash could differ because of family makeup, lifestyle, geography, and season |
|
Two periods — 45 minutes each |
|